Brief introduction of Allegro Microsystems
Let’s Begin the Journey Here in Prague, the design center focuses on current sensors, primarily using the Hall effect (mostly) or tunnel magneto-resistance (less commonly). The most important applications of these physical effects are: Hall switch: Used to detect when a current or magnetic field is applied in a particular direction. Magnetic latches: When the magnetic field is on the south pole, it is ON; when it is on the north pole, it is OFF. Linear devices: These provide an output voltage proportional to the input current/magnetic field, usually differential at half-supply of common mode. The image below shows an example of a Hall switch. ...